diff --git a/run.py b/run.py
index 0ad36e2..3e9f9f7 100644
--- a/run.py
+++ b/run.py
@@ -143,7 +143,7 @@ def send_to_xnat(xnat_username: str, xnat_password: str, xnat_host: str,
     # First upload to user cache
     now = datetime.now()
     upload_id = now.strftime("%Y_%m_%d_%H_%M_%S")
-    cache_path = f'/user/cache/resources/${upload_id}/files/${zip_file.name}'
+    cache_path = f'/user/cache/resources/{upload_id}/files/{zip_file.name}'
     encoded_cached_path = quote(cache_path, safe='/')
     url = f'{xnat_host}/data/{encoded_cached_path}'